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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/metrics/accessibility_state_provider.h"
#include "content/public/browser/browser_accessibility_state.h"
#include "third_party/metrics_proto/system_profile.pb.h"
#include "ui/accessibility/ax_mode.h"
namespace {
metrics::SystemProfileProto::AccessibilityState::AXMode ModeFlagsToProtoEnum(
uint32_t mode_flags) {
switch (mode_flags) {
case ui::AXMode::kNativeAPIs:
return metrics::SystemProfileProto::AccessibilityState::NATIVE_APIS;
case ui::AXMode::kWebContents:
return metrics::SystemProfileProto::AccessibilityState::WEB_CONTENTS;
case ui::AXMode::kInlineTextBoxes:
return metrics::SystemProfileProto::AccessibilityState::INLINE_TEXT_BOXES;
case ui::AXMode::kExtendedProperties:
return metrics::SystemProfileProto::AccessibilityState::
EXTENDED_PROPERTIES;
case ui::AXMode::kHTML:
return metrics::SystemProfileProto::AccessibilityState::HTML;
case ui::AXMode::kHTMLMetadata:
return metrics::SystemProfileProto::AccessibilityState::HTML_METADATA;
case ui::AXMode::kLabelImages:
return metrics::SystemProfileProto::AccessibilityState::LABEL_IMAGES;
case ui::AXMode::kPDFPrinting:
return metrics::SystemProfileProto::AccessibilityState::PDF_PRINTING;
case ui::AXMode::kAnnotateMainNode:
return metrics::SystemProfileProto::AccessibilityState::
ANNOTATE_MAIN_NODE;
case ui::AXMode::kScreenReader:
return metrics::SystemProfileProto::AccessibilityState::SCREEN_READER;
default:
NOTREACHED();
}
}
void MaybeAddAccessibilityModeFlags(
const ui::AXMode& mode,
uint32_t mode_flags,
metrics::SystemProfileProto::AccessibilityState* state) {
if (mode.has_mode(mode_flags)) {
state->add_enabled_modes(ModeFlagsToProtoEnum(mode_flags));
}
}
} // namespace
AccessibilityStateProvider::AccessibilityStateProvider() = default;
AccessibilityStateProvider::~AccessibilityStateProvider() = default;
void AccessibilityStateProvider::ProvideSystemProfileMetrics(
metrics::SystemProfileProto* system_profile) {
const ui::AXMode mode =
content::BrowserAccessibilityState::GetInstance()->GetAccessibilityMode();
if (mode.is_mode_off()) {
return;
}
if (content::BrowserAccessibilityState::GetInstance()
->IsAccessibilityPerformanceMeasurementExperimentActive()) {
// An active experiment means that the existing AXMode were not user
// initiated. We don't want to record those AXModes in the UMA.
return;
}
auto* state = system_profile->mutable_accessibility_state();
MaybeAddAccessibilityModeFlags(mode, ui::AXMode::kNativeAPIs, state);
MaybeAddAccessibilityModeFlags(mode, ui::AXMode::kWebContents, state);
MaybeAddAccessibilityModeFlags(mode, ui::AXMode::kInlineTextBoxes, state);
MaybeAddAccessibilityModeFlags(mode, ui::AXMode::kExtendedProperties, state);
MaybeAddAccessibilityModeFlags(mode, ui::AXMode::kHTML, state);
MaybeAddAccessibilityModeFlags(mode, ui::AXMode::kHTMLMetadata, state);
MaybeAddAccessibilityModeFlags(mode, ui::AXMode::kLabelImages, state);
MaybeAddAccessibilityModeFlags(mode, ui::AXMode::kPDFPrinting, state);
MaybeAddAccessibilityModeFlags(mode, ui::AXMode::kAnnotateMainNode, state);
// ui::AXMode::kFromPlatform is unconditionally filtered out and is therefore
// never present in `mode`.
CHECK(!mode.has_mode(ui::AXMode::kFromPlatform));
MaybeAddAccessibilityModeFlags(mode, ui::AXMode::kScreenReader, state);
}
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